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    RETARDER
    2.
    发明申请
    RETARDER 审中-公开

    公开(公告)号：US20200333521A1

    公开(公告)日：2020-10-22

    申请号：US16765400

    申请日：2018-11-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Stephen A. Johnson ,  Derek W. Patzman ,  Richard Y. Liu ,  Victor Ho ,  John F. Van Derlofske, III

    IPC: G02B5/30 ,  C08L67/02

    Abstract: A retarder including first and second outer layers and a birefringent layer disposed between and in direct contact with the first and second outer layers is described. The birefringent layer may include a first polyester having greater than 45 mole percent naphthalate units and greater than 45 mole percent ethylene units. Each of the first and second outer layers includes a second polyester which may include 40 to 50 mole percent naphthalate units, at least 25 mole percent ethylene units, and 10 to 25 mole percent of branched or cyclic C4-C10 alkyl units. The retarder has a retardance in a range of 1 micrometer to 100 micrometers.

    ADHESIVE AND DAMPING FILM
    7.
    发明申请
    ADHESIVE AND DAMPING FILM 审中-公开

    公开(公告)号：US20190106603A1

    公开(公告)日：2019-04-11

    申请号：US16094036

    申请日：2017-04-24

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Richard Y. Liu ,  Roger A. Grisle ,  Benjamin J. Bending ,  Nathaniel I. Lehn

    IPC: C09J7/35 ,  C09J7/26

    Abstract: Adhesives including a polyester at 20 to 50 weight percent, a first tackifier at 30 to 60 weight percent, and a first olefin-styrene block copolymer at 5 to 30 weight percent are described. The polyester has a glass transition temperature between −40° C. and −10° C., and the adhesive has a heat activation temperature between 20° C. and 100° C. Damping films including at least one layer of the adhesive and including a foamed layer are described. The foamed layer includes a second olefin-styrene block copolymer at 30 to 80 weight percent and a second tackifier at 15 to 60 weight percent.

    BRIGHTNESS ENHANCEMENT FILM
    8.
    发明申请
    BRIGHTNESS ENHANCEMENT FILM 有权
    亮度增强膜

    公开(公告)号：US20160282523A1

    公开(公告)日：2016-09-29

    申请号：US14671148

    申请日：2015-03-27

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Richard Y. Liu

    IPC: G02B5/04 ,  G02B5/02 ,  G02B1/14 ,  G02B1/04

    CPC classification number: G02B5/045 ,  G02B1/04 ,  G02B1/14 ,  G02B5/0294 ,  Y10T428/1036 ,  Y10T428/1041 ,  C08L67/00

    Abstract: A brightness enhancement film including a monolithic layer and a microstructured layer adjacent the monolithic layer. The microstructured layer has a first major surface and an opposing second major surface. The first major surface includes a first plurality of microstructures and the second major surface faces the first monolithic layer. The monolithic layer includes a polyester that includes at least about 70 mole percent naphthalenedicarboxylate groups based on total carboxylate groups. The polyester may include one or more catalysts having a total concentration by weight in a range of 10 to 1000 ppm. The first monolithic layer has a thickness in the range of about 5 μm to about 300 μm. The first monolithic layer may be substantially free of non-catalyst particulate matter and may have a haze of less than 1 percent.

    Abstract translation: 一种亮度增强膜，包括单片层和与单片层相邻的微结构层。 微结构层具有第一主表面和相对的第二主表面。 第一主表面包括第一多个微结构，第二主表面面向第一整体层。 整体层包括基于总羧酸盐基团包含至少约70摩尔％萘二甲酸酯基团的聚酯。 聚酯可以包括总重量在10至1000ppm范围内的一种或多种催化剂。 第一单片层的厚度在约5μm至约300μm的范围内。 第一整体层可以基本上不含非催化剂颗粒物质，并且雾度小于1％。

    HIGH CONTRAST PROJECTION SCREEN
    10.
    发明申请
    HIGH CONTRAST PROJECTION SCREEN 审中-公开
    高对比度投影屏

    公开(公告)号：US20140313579A1

    公开(公告)日：2014-10-23

    申请号：US14359318

    申请日：2012-12-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Richard Y. Liu ,  Francis V. Loncar, JR. ,  David J. Koch

    IPC: G03B21/56

    CPC classification number: G03B21/56 ,  G03B21/60

    Abstract: The present disclosure describes a front projection system. The front projection system includes a light absorbing layer having an absorbance in a visible range of the electromagnetic spectrum of at least 80% and a light diffusing layer disposed on the light absorbing layer between the light absorbing layer and the projector. The light diffusing layer includes a plurality of metal flakes uniformly distributed in a host material, an average size of the plurality of metal flakes being in a range from about 0.5 microns to about 20 microns, at concentration of in a range from about 3% to about 30% by weight. A plurality of light absorbing particles uniformly distributed in the host material at a concentration of less than about 7% by weight, and a major front surface facing the projector having an average surface roughness in a range from about 0.5 microns to about 10 microns.

    Abstract translation: 本公开描述了一种前投影系统。 前投影系统包括具有至少80％的电磁光谱的可见范围内的吸光度的光吸收层和设置在光吸收层和投影仪之间的光吸收层上的光漫射层。 光漫射层包括均匀分布在主体材料中的多个金属薄片，多个金属薄片的平均尺寸在约0.5微米至约20微米的范围内，浓度范围为约3％至约20微米 约30重量％。 多个光吸收颗粒以小于约7重量％的浓度均匀分布在主体材料中，并且面向投影仪的主表面的平均表面粗糙度在约0.5微米至约10微米的范围内。

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